class BankAccount

    attr_accessor :amount
    attr_reader :name


    @@minimum_balance = 200

    def initialize(amount,name)
      @amount = amount
      raise ArgumentError.new("The minumun balance must be $299") if @amount < @@minimum_balance
      @name = name


    end

    def balance
        @amount
    end

    def deposit(depos)
      @amount += depos
    end

    def withdrawal(num)
      @amount -= num
    end

    def transfer(amount,bank_account)
      @amount -= amount
      bank_account.amount += amount
    end


    def self.minimum_balance=(amount)
      @@minimum_balance = amount

    end

    def self.minimum_balance
      @@minimum_balance
    end

  end